"Celtic Guardian", "Winged Dragon, Guardian of the Fortress #1", "Winged Dragon, Guardian of the Fortress #2", "Guardian of the Labyrinth", and "The Reliable Guardian" are not "Guardian" cards as they do not include 「ガーディアン」 in their Japanese names. As such, the only Guardian support card, "Arsenal Summoner", specifically excludes them.
The core "Guardian" monsters were initially released in Dark Crisis and re-released in Dark Revelation Volume 1. They can only be Summoned if that Equip Card is already face-up on the field. However you can still Set them without controlling their respective Equip Card.
The Equip Spell does not have to be equipped to their corresponding monster, and due to their Summoning conditions, usually can't be. "Guardian Eatos" is the only of Rafael's Guardians who can be Summoned without restrictions.
|Equip Spell Card||Guardian|
|Rod of Silence||Kay'est|
|Shooting Star Bow||Ceal|
|Twin Swords of Flashing Light||Tryce|